The 11-year program, "the 50 State Quarter program," ran from 1999 to 2008, during which each state was given a specific quarter design. Most U.S. state quarters retain their original value of $0.25.

Here are 20 rare state quarters worth additional value, according to Gainesville Coins, USA CoinBook and PCGS.

Prime condition, minting errors, and/or unique histories have contributed to massive resale value for quarters you may have ...

Add Yahoo as a preferred source to see more of our stories on Google. A manufacturing error on the 1999 Georgia state quarter has increased the coin’s value, and ...

The 50 State Quarters program ran from 1999 through 2008, and it remains one of the most collected coin series in American history. Most of those quarters are worth exactly 25 cents. A small number, ...

A manufacturing error on the 1999 Georgia state quarter has increased the coin’s value, and some collectors are paying as much as $10,000 for the affected 25-cent ...